pin pallet escapement

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• Pin-pallet escapement — A Roskopf, pin lever, or pin pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It …   Wikipedia

• pin pallet — noun : an alarm clock lever escapement in which the pallet has upright pins instead of horizontally set jewels …   Useful english dictionary

• Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

• Pallet fork — The pallet fork or pallet lever is an integral component of the lever escapement of a typical mechanical watch. [cite web last = Odets first = Walt authorlink = coauthors = title = The Anchor Escapement work = The Horologium publisher =… …   Wikipedia

• Lever escapement — The lever escapement is a key component of the typical movement found in most mechanical wristwatches, pocket watches and many small mechanical non pendulum clocks. The invention of the lever escapement is attributed to Thomas Mudge, and its… …   Wikipedia

• Grasshopper escapement — The grasshopper escapement is an unusual, low friction escapement for pendulum clocks invented by British clockmaker John Harrison around 1722. An escapement, a part of every mechanical clock, is the mechanism that releases the clock s gears to… …   Wikipedia

• guard pin — noun : a pin in a lever escapement watch set into the pallet fork for preventing accidental unlocking of the escapement * * * Horol. (in a lever escapement) a pin on the lever, meeting the safety roller in such a way as to prevent the lever from… …   Useful english dictionary

• banking pin — noun Etymology: from present participle of bank (II) 1. : either of two upright pins limiting the angular motion of the pallet fork in a timepiece having a lever escapement 2. : a pin emerging horizontally from the rim of a balance in a cylinder… …   Useful english dictionary

• Georges Frederic Roskopf — Infobox Person name = Georges Frederic Roskopf Georges F. Roskopf (1813 1889), the inventor of the pin pallet escapement, was born in Germany and became a naturalized Swiss citizen. Early life and introduction In 1829, when Roskopf was 16, he… …   Wikipedia

• Su Song — 蘇頌 (Sū Sòng) Born 1020 near Quanzhou Died 1101 (aged 80–81) Nationality Chinese …   Wikipedia

• Dollar watch — A dollar watch was a pocket watch or later, a wristwatch, that sold for about one dollar. The sale of such watches began in 1892 by the watchmakers Ingersoll Watch Company, Waterbury Clock Company, and New Haven. Later, Western Clock (Westclox)… …   Wikipedia